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The charge on the phosphate ion is 3-, PO43- . The formula for phosphate of chromium is CrPO4. What is the charge on the chromium ion in this compound? Chromium and phosphate form a second compound, Cr3(PO4)2 . What is the charge on the chromium ion in this compound? Name the two compounds unambiguously.
A 89 L sample of dry air is cooled from 134°C to -18°C while the pressure is maintained at 2.85 atm. What is the final volume?
How many grams of H2 are needed to react with 3.10 g N2?
Describe inorganic chemistry
Catalysts are substances that increase the rate of reaction but can be recovered unchanged at the end of the reaction. Catalysts can be classified as either homogeneous or heterogeneous
Calculate The energy of the four lowest energy levels of the He+ ion? b)What is the energy and wavelength associated with the n=2- n=1 transition in He+
ammonia gas at 223degc and 90. atm flows into a reactor at a rate of 480. lmin. carbon dioxide at 223degc and 43 atm
Hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules
Although the vibrational degrees of freedom are generally not in the high-T limit, is the vibrational partition fuction evaluated hy discrete summation?
The esterification reaction of acetic acid with ethanol to give ethyl acetate proceeds with the following stoichiometry: CH3COOH + C2H5OH ----> H20 + CH3COOC2H5.
An extraction procedure specifies that an aqueous solution containing dissolved organic material be extracted twice with 10-mL portions of diethyl ether.
Carboxylic acids and phenols can be separated by chemically active extraction if the pH of the aqueous layer is properly chosen. Phenols are sufficiently acidic to be extracted into aqueous sodium hydroxide
At 340 K, Kp = 69 for the reaction H2(g) + I2(g) ->2HI(g). 50.0 g of HI is injected into an evacuated 5.00-L rigid cylinder at 340 K. What is the total pressure inside the cylinder when the system comes to equilibrium?
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